一价

Their cation binding behavior to alkali and heavy metal ions was evaluated by solvent extraction of aqueous metal picrates.

进而采用溶剂萃取的方法研究了它们与一价金属阳离子的键合行为。

Based on the pioneers' research work, the theoretical calculations have been performed on the interactions between the alkaline earth ions and aromatic systems.

在前人研究一价离子的基础上，进一步研究了金属离子，特别是碱土金属离子与芳环体系的相互作用。

The invention relates to a method for making oligomeric isocyanates by reacting diisocyanates in the presence of a catalyst, wherein the catalyst comprises a saline compound prepared from an anion selected from 1,2,3- or 1,2,4-triazole, a substituted species of 1,2,3- or 1,2,4-triazole and carbocyclically and/or heterocyclically annellated species of 1,2,3- or 1,2,4-triazole and the cation selected from an alkali metal, alkaline-earth metal and/or monovalent ammonium cation and/or phosphonium cation of formula (5), wherein the E, R1, R2, R3, R4 are as defined in the descriotion.

本发明涉及一种制备低聚异氰酸酯的方法，包括二异氰酸酯在催化剂的存在下进行反应，其中所述催化剂由盐化合物组成，该盐化合物由选自1，2，3-或1，2，4-三唑、1，2，3-或1，2，4-三唑的取代系列者、1，2，4-三唑的碳环稠合系列者、1，2，3-或1，2，4-三唑的杂环稠合系列者的化合物及其混合物的阴离子和选自碱金属、碱土金属和/或通式(5)的一价铵阳离子和/或磷友衾胱拥难衾胱又票福其中E、R 1 、R 2 、R 3 和R 4 如说明书中所定义。

Transition probabilities, oscillator strengths, and lifetimes of configurations, multiplets, and individual lines for many-electron atoms and ions are studied employing the WBEPM theory. Transition probabilities and oscillator strengths for alkali metal atoms, alkaline-earth elements Be, Mg, Be , and Mg , carbon atoms and its ions , nitrogen atom and its ions , oxygen atoms and its ions , fluorine atom, Ne , and IB elements are calculated. Lifetimes of C, N, and O atoms are evaluated as well.

运用WBEPM理论对多电子原子和离子的组态、谱项和能级间的跃迁几率、振子强度以及辐射寿命进行系统地研究，计算了碱金属原子、碱土金属的Be、Mg原子及其一价离子、C原子及其离子、N原子及其离子、O原子及其离子、F原子、Ne离子和重金属IB族原子的跃迁几率和振子强度以及C、N、O原子的辐射寿命。

RN2, in which R is an aromatic hydrocarbon.

重氮基一价阳离子rn2，其中r是芳烃

In Chapter 4, bivalent metal ions and imidazolate derivatives were selected to construct three-dimensional 4-connected networks with tetrahedral nodes.

因此该章为拓扑网络的构筑提出一个新的思路，并且进一步证明了一价d〓金属离子间存在着相互吸引作用。

A salt or an ester of malic acid.

硝酸根，硝酸盐一价的根NO3或包含它的化合物，如一种硝酸盐或者酯

The univalent radical NO 3 or a compound containing it, as a salt or an ester of nitric acid.

硝酸根，硝酸盐：一价的根NO 3或包含它的化合物，如一种硝酸盐或者酯

The univalent radical NO3or a compound containing it,as a salt or an ester of nitric acid.

硝酸根，硝酸盐一价的根NO3或包含它的化合物，如一种硝酸盐或者酯

It is understood that the current mill is no longer the Association in accordance with the procurement prices of the three major iron ore mines, and in time pending the outcome of the negotiations, procurement and settlement systems, very confused, almost a price of a factory, a steel prices in accordance with the long-HS 60%-80% open letters of credit to the supplier.

据了解，由于目前钢厂已经不按长协价格采购三大矿山的铁矿，而在谈判未有结果的时候，采购结算体系极为混乱，几乎是一厂一价，有钢厂按照长协价格的60％-80％给供应商开信用证。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。